On Fri, Aug 14, 2015 at 07:04:56PM +0800, Baolin Wang wrote: > On 14 August 2015 at 16:55, Li Jun <b47624@xxxxxxxxxxxxx> wrote: > > Hi Baolin, > > > > On Fri, Aug 14, 2015 at 05:47:43PM +0800, Baolin Wang wrote: > >> Currently the Linux kernel does not provide any standard integration of this > >> feature that integrates the USB subsystem with the system power regulation > >> provided by PMICs meaning that either vendors must add this in their kernels > >> or USB gadget devices based on Linux (such as mobile phones) may not behave > >> as they should. > >> > >> Providing a standard framework for doing this in the kernel. > >> > > > > Why not add power supply class support into this? > > > > Hi Jun, > > We don't need the power supply class support into the usb charger, I suppose usb charger is also a power supply for the system, we can use power supply class framework for notify mechanism and get/set many attributes(maybe also the current limit), I see those usb charger drivers under ./driver/power/ are designed with power supply supported. Li Jun > just introduce the notify mechanism for power to set the current limit > when notifying some events from usb charger. Maybe I misunderstand > your meanings, please describe it detailedly. Thanks for your > comments. > > > Li Jun > > > > > > -- > Baolin.wang > Best Regards -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
